Level 3 Hairline Fiber Comb - Hair Fiber Line Up Optimizer - Applicator Combs for Hair Building Fibers Powder, Black

It's pricey but recommended

Helps give a natural looking hairline

Bought to use with root touch-up hair dye. Better that using a straight edge but doen't quite cover all the roots due to edge. Can't say how it would do with hair powder.

Helps with a natural looking hair line. good product.

My bad - I should have checked the dimensions. It is quite useless but so inexpensive, it's not worth the trouble to return it.

Does the job intended for.

I use this when applying my root color touch up spray. It does the job and makes it look more normal. No forehead overspray.

Didn't help much with my hair styling might help somebody else but not for me